| 摘要 |
<p>Apparatus for continuously producing continuous oxidized filaments (1) includes a series of tower guide rollers (4a, 4b, 4c . . .) provided at the outside of a furnace (2) for guiding the filaments and a series of gas suction seal chambers (8a, 8b, 8c . . .) provided inside the bottom of the furnace. The gas suction seal chambers have a series of sub-partition plates (23a, 23b, 23c . . .) which are arranged along the path of filaments and have gas passing means. The external air which tends to go into the furnace through the slits (10) formed in the bottom wall (20) of the furnace will be sucked into the gas suction seal chambers and prevented from entering the heated oxidizing atmosphere in the furnace. Thus the temperature variation in the furnace will be reduced and the quality of produced filaments will be improved. The upper guide rollers (3a, 3b, 3c . . .) may be outside or inside the furnace (2). If they are outside the furnace (2), a series of gas supply seal chambers (5a, 5b, 5c . . .) inside the top of the furnace (2) performs an analogous function to the gas suction seal chambers (8a, 8b, 8c . . .) at the bottom. </p> |
